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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF2131 датащи(PDF) 68 Page - NXP Semiconductors |
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PCF2131 датащи(HTML) 68 Page - NXP Semiconductors |
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68 / 86 page  NXP Semiconductors PCF2131 Nano-power highly accurate RTC with integrated quartz crystal 11 Application information aaa-041891 VDD VDD(in) VDD VBAT BBS VDD INTA BBS SDI SDO SDA/CE IFS TS1 CLKOUT CLKOUT SCL VSS Rsup Csup 100 nF 100 nF 1 to 100 nF RPU Interface PCF2131 INTA I2C SPI TS2 TS3 TS4 VDD INTB RPU INTB RPU: 10 kΩ is recommended. RSUP and CSUP: An appropriate RC filter needs to be added to guarantee the chip will only see <0.35 V/ms ramp down rate on supply, even if Vdd_in ramp rate is very high. Figure 42. General application diagram PCF2131 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1.1 — 15 October 2021 68 / 86 |
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